@article{UM_1992__0_4_a23,
     author = {Koman, Milan},
     title = {V \v{c}em se li\v{s}{\'\i} tato matematick\'a dvoj\v{c}ata?},
     journal = {U\v{c}itel matematiky},
     pages = {30--31},
     publisher = {mathdoc},
     volume = {00},
     number = {4},
     year = {1992},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/UM_1992__0_4_a23/}
}